package com.guli.gulimall.order.web;

import com.guli.common.exception.NoStockException;
import com.guli.gulimall.order.service.OrderService;
import com.guli.gulimall.order.vo.OrderConfirmVo;
import com.guli.gulimall.order.vo.OrderSubmitVo;
import com.guli.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.concurrent.ExecutionException;

@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    //跳转到订单确认页面
    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        //展示订单确认的数据
        OrderConfirmVo confirmVo = orderService.confirmOrder();
        model.addAttribute("orderConfirmData", confirmVo);
        return "confirm";
    }

    /**
     * 提交订单
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo submitVo, Model model, RedirectAttributes attributes){
        //去服务器创建订单，验证令牌，验证价格，锁库存。。
//        SubmitOrderResponseVo responseVo = orderService.submitOrder(submitVo);
//        if(responseVo.getCode() == 0){
//            //下单成功，来到支付选择页面
//            return "pay";
//        }else{
//            //下单失败回到，订单确认页面，确认订单信息
//            return "redirect:http://order.gulimall.com/toTrade";
//        }
        try{
            SubmitOrderResponseVo responseVo=orderService.submitOrder(submitVo);
            Integer code = responseVo.getCode();
            if (code==0){
                model.addAttribute("order", responseVo.getOrder());
                return "pay";
            }else {
                String msg = "下单失败;";
                switch (code) {
                    case 1:
                        msg += "防重令牌校验失败";
                        break;
                    case 2:
                        msg += "商品价格发生变化";
                        break;
                }
                attributes.addFlashAttribute("msg", msg);
                return "redirect:http://order.gulimall.com/toTrade";
            }
        }catch (Exception e){
            if (e instanceof NoStockException){
                String msg = "下单失败，商品无库存";
                attributes.addFlashAttribute("msg", msg);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }

    }
}
